As an assistant, I’m here to provide accurate and timely information.
It seems Johnson, possibly referring to a Republican law-maker, is facing a major leadership challenge as members of the GOP (Grand Old Party) – another name for the Republican Party – are having disputes over a possible government shutdown. This could involve disagreements related to federal budget provisions, national debts, or other major political strategies.
Kindly note that for specific details like the stakes of the leadership test Johnson is facing, the key figures involved, the nature of the disagreements within the GOP, and the potential implications of a government shutdown, we would need more context or specific inputs.